// validate ensures the given acct or auth application ID exists in
// the given dictionary.
func (app *Application) validate(d *dict.Parser, appType uint32, appAVP *diam.AVP) (failedAVP *diam.AVP, err error) {
if appAVP == nil {
return nil, nil
}
var typ string
switch appType {
case avp.AcctApplicationID:
typ = "acct"
case avp.AuthApplicationID:
typ = "auth"
}
if appAVP.Code != appType {
return appAVP, &ErrUnexpectedAVP{appAVP}
}
appID, ok := appAVP.Data.(datatype.Unsigned32)
if !ok {
return appAVP, &ErrUnexpectedAVP{appAVP}
}
id := uint32(appID)
avp, err := d.App(id)
if err != nil {
return appAVP, &ErrNoCommonApplication{id, typ}
}
if len(avp.Type) > 0 && avp.Type != typ {
return appAVP, &ErrNoCommonApplication{id, typ}
}
app.id = append(app.id, id)
return nil, nil
}
